P started from his school towards south. After walking a distance of 2 km. He turned to the left and walked 2 km than he turned to the right and walked 2km. After this he turn to the left and walked 2km and finally he turn to the left and walked 4 km. How far P from his starting point?
1
1 km
2
5 km
3
2 km
4
4 km